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Kamila [148]
2 years ago
13

When carbon dioxide dissolves in water, it undergoes a multistep equilibrium process, with Koverall = 4.5x10⁻⁷, which is simplif

ied to the following:(c) What is [CO₃²⁻] in rainwater (Ko of HCO₃⁻ = 4.7 × 10⁻¹¹) ?
Chemistry
1 answer:
seropon [69]2 years ago
3 0

The extensive acid electricity of intact carbonic acid suggests that it is an essential protonation agent below physiological conditions.

<h3>Why is CO2 an acid?</h3>

CO2 is not an acid itself, considering it does no longer incorporate ions of hydrogen (H+). CO2 becomes carbonic acid in water.

Carbonic acid (H2CO3) is a weak, H+-splitting acid. Carbonic acid, a weak acid that acidifies the solution, is formed when some of the carbon dioxide dissolves in the water.

<h3>How do you measure HCO3 in water?</h3>

Since pH = -log [H+], [H+] = 10 to the poor pH. We can use this data and some algebra to rewrite the equation as [HCO3-] = ( two x whole alkalinity ) - ( 10 to the (-14 + pH) ) / ( 1 + 2K2 x 10 to the pH).

Learn more about carbonic acid here:

<h3>brainly.com/question/8552374</h3><h3 /><h3>#SPJ4</h3>

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Suppose a 500.mL flask is filled with 1.0mol of CO, 1.5mol of H2O and 0.70mol of CO2. The following reaction becomes possible: +
valentina_108 [34]

Answer:

[CO] = 0.62 M

Explanation:

Step 1: Data given

Volume of the flask = 500 mL

Number of moles CO = 1.0 moles

Number of moles H2O = 1.5 moles

Number of moles CO2 = 0.70 moles

The equilibrium constant K for this reaction is 3.80

Step 2: The balanced equation

CO(g) + H2O(g) ⇆ CO2(g) +H2(g)

Step 3: Calculate the initial concentrations

Concentration = moles / volume

[CO] = 1.0 moles / 0.500 L = 2.0 M

[H2O] = 1.5 moles / 0.500 L = 3.0 M

[CO2] = 0.70 moles / 0.500 L = 1.4 M

[H2] = 0M

Step 4: The concentration at the equilibrium

For 1 mol CO we have 1 mol H2O to produce 1 mol CO2 and 1 mol H2

[CO] = 2.0 -X M

[H2O] =  3.0 - X M

[CO2] =1.4 + X M

[H2] = X M

Step 5: Define Kc

Kc = [CO2][H2]/ [CO][H2O]

3.80 = (1.4 + X) * X / ((2.0 - X)*3.0 -X))

X = 1.38

[CO] = 2.0 -1.38 = 0.62 M

[H2O] =  3.0 - 1.38 = 1.62 M

[CO2] =1.4 + 1.38 M = 2.78

[H2] = 1.38 M

Kc = (2.78*1.38) / (0.62*1.62)

Kc = 3.8

[CO] = 0.62 M

8 0
3 years ago
Calculate the moles of FeFe in 1.17×10221.17×1022atoms of FeFe.
Ivenika [448]

Answer:

The number of moles of Fe in 1.17*10^22 atoms Fe is 0.0194 moles

Explanation:

Step 1: Data given

Number of atoms of Fe = 1.17 * 10^22 atoms

Number of Avogadro = 6.022 *10^23

Step 2: Calculate number of moles Fe

Moles Fe = atoms Fe / number of Avogadro

Moles Fe = 1.17*10^22 atoms / 6.022*10^23 / moles

Moles Fe = 0.0194 moles

The number of moles of Fe in 1.17*10^22 atoms Fe is 0.0194 moles

4 0
3 years ago
Which statement describes how the Van Allen belts are formed? O when low-energy particles from the Sun bounce off Earth’s magnet
aniked [119]

Answer:

when high-energy particles from the sun are trapped by earth's magnetic field

Explanation:

it is produced by a "depression" in the Earth's magnetic field in that area, caused by the fact that the center of the Earth's magnetic field is deviated from its geographic center by 450 km. Such an anomaly is thought by some to be a side effect of a Geomagnetic Reversal. These radiation belts originate from the Earth's intense magnetic field that is the product of their rotation. That field traps charged particles (plasma) from the Sun (solar wind), as well as charged particles that are generated by interaction of the Earth's atmosphere with cosmic radiation and high-energy solar radiation.

8 0
3 years ago
Read 2 more answers
A sample of solid iron is heated with an electrical coil. If 85.7 Joules of energy are added to a 14.3 gram sample initially at
Masja [62]

Answer:

The final temperature of the iron is:- 38.0 °C

Explanation:

The initial temperature = 24.7 °C

Let Final temperature = T °C

Using,

Q = m C ×ΔT

Where,  

Q is the heat absorbed by the iron = 85.7 J

C gas is the specific heat of the iron = 0.45 J/g  °C

m is the mass of iron = 14.3 g

ΔT is the change in temperature. ( T - 24.7 ) °C

Applying the values as:

<u>Q = m C ×ΔT  </u>

85.7 J = 14.3 g × 0.45 J/g  °C  × ( T - 24.7 ) °C

Solving for T, we get that:-

T = 38.0 °C

<u>The final temperature of the iron is:- 38.0 °C</u>

7 0
4 years ago
A living thing that cannot make its own food and must eat other living things for energy
lisabon 2012 [21]

Answer:

heterotrophs

Explanation:

7 0
3 years ago
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